protected override async Task <Task> StartProcessAsync(CancellationToken stopCancellationToken)
{
Log.Debug("Trying to accure instance semaphore");
if (!_instanceSemaphore.WaitOne(0))
{
throw new BrokerIsAlreadyRunningException(_workingDir);
}
try
{
stopCancellationToken.ThrowIfCancellationRequested();
Log.Info("Starting broker in directory {0}", _workingDir);
BrokerProcessor brokerProcess;
using (stopCancellationToken.Register(OnStop))
{
await _transportServer.StartAsync().ConfigureAwait(false);
brokerProcess = new BrokerProcessor(
_transportServer,
_registryProvider,
DefaultProtocolSerializationProvider,
_appLifecycleManager);
Log.Info("Broker started in directory {0}", _workingDir);
}
return(TaskRunner.RunInBackground(
async() =>
{
try
{
using (stopCancellationToken.Register(OnStop))
{
await brokerProcess.Completion.ConfigureAwait(false);
}
}
finally
{
_instanceSemaphore.Release();
}
},
stopCancellationToken));
}
catch
{
_instanceSemaphore.Release();
throw;
}
}
public BrokerRunner(string metadataDir = null, IRegistryProvider registryProvider = null)
{
_workingDir = Directory.GetCurrentDirectory();
metadataDir = metadataDir ?? Path.Combine(_workingDir, "metadata");
_transportServers = new ITransportServer[]
{
new TransportServer(new PipeTransmissionServer(_workingDir), DefaultTransportSerializationProvider),
new TransportServer(new WebSocketTransmissionServer(_workingDir), DefaultTransportSerializationProvider)
};
_connectionListener = new ServerConnectionListener(_transportServers);
registryProvider = registryProvider ?? JsonRegistryProvider.Initialize(Path.Combine(metadataDir, "interop.json"));
_connectionTracker = new AppLifecycleManager(metadataDir);
_brokerProcessor = new BrokerProcessor(
_connectionListener.In,
registryProvider,
DefaultProtocolSerializationProvider,
_connectionTracker);
OnStop(_connectionListener.Stop);
}
